Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [arp]

For questions about Address Resolution Protocol (ARP). ARP resolves OSI layer-3 addresses to OSI layer-2 addresses.

0
votes
2answers
191 views

How can i monitor ARP packet on WiFi network?

I want to monitor packet in my network. It said that ARP packet request broadcasted all over network. But why i only see my arp request packet and reply packet to the gateway?
1
vote
1answer
117 views

Opinion on techinique to solve arp poisoning

I have been researching about prevention of ARP spoofing in an individual's device (smart phone or laptop) in a public network. If we save the MAC address of the default gateway at the time of ...
-1
votes
1answer
44 views

Are there router or other network settings that can prevent the setting of a static IP addresson a client PC

We need to set up an application that requires the client PC to have a static IP address. It was having trouble retaining the assigned IP address between reboots until we disabled Gratuitous ARP. We ...
2
votes
0answers
136 views

Brocade FastIron ignoring ARP cache settings

I have a Brocade FastIron FESX648 and I'm attempting to increase the ARP cache timeout on a port that is connected to an IXP. According to the Brocade docs, I can increase the timeout up to 4 hours ...
1
vote
0answers
38 views

Is this wireshark capture showing any issue?

I used Wireshark to capture the packets bellow: ... 350 18.942762436 d0:07:ca:0b:63:0c -> Broadcast ARP 60 Who has 13.210.32.75? Tell 13.210.32.78 351 18.947224197 d0:07:ca:0b:63:0c -> ...
1
vote
0answers
51 views

Swapping routers resulting in ARP issues?

A day ago I tried to swap out a router with a Meraki MX-84 Gateway in order to test the Meraki's VPN functionality. I set the static IP configuration on the MX-84's Internet interface to be the same ...
1
vote
0answers
138 views

Cisco Asr1001 not able to receive 2048 macs (arps) in a sub-interface

I´m Brasilian, so excuse me any gramar error. I have a cisco router ASR1001 (IOS XE Version: 03.08.01.S) and I need to connect it to a service provider running BGP ipv4. This service provider gave me ...
1
vote
0answers
283 views

Why would a default gateway send two ARP responses to one ARP request?

We have a Netscreen router as the default gateway. I have a windows 7 machine in the network. I deleted the ARP cache on this windows machine using the command "arp -d". As soon as I did that, there ...
1
vote
0answers
191 views

Why does NMAp find disconnected devices?

I want to wake up and see the devices connected on my local network, using NMAP. So I execute this command : sudo nmap -sn -PU[7] -PE 10.11.204.1/24 (extract from the man page : sn: Ping Scan - ...
0
votes
0answers
44 views

Wireshark switch ping

I understand that a switch will broadcast to all ports if it doesn't have the destined destination in its mac address table but when I analysed a scenario in wireshark I got confused at what happened. ...